<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>对象解构</title>
</head>
<body>
 <script>
    let [a,b,c]=['1','2','3'];
    console.log('a',a,'b',b,'c',c);
    
    let setArr = new Set([1,2,1,2,4]);
    console.log('set对象', setArr);
     
 </script>
</body>
</html>